Denon AVR-4520CI Service Manual

Contents

228Pin No. Mnemonic Type DescriptionC1 OSD_IN[19]/EXT_DIN[3] OSD video input/miscellaneous digitalExternal OSD Video Pixel Input Port (OSD_IN[19])/Additional TTL Input forExternal CCIR 656 Video Data (EXT_DIN[3]).C2 OSD_IN[20]/EXT_DIN[4] OSD video input/miscellaneous digitalExternal OSD Video Pixel Input Port (OSD_IN[20])/Additional TTL Input forExternal CCIR 656 Video Data (EXT_DIN[4]).C3 GND GND Ground.C4 AUD_IN[4] Audio input I 2S3/DSD4 Audio Input.C5 DSD_CLK Audio input DSD Audio Clock Input.C6 SCLK Audio input I 2S Bit Clock Input.C7 SCL I 2C control I 2C Clock Input. This pin is open drain; use a 4.7 kΩ resistor to connect this pinto a 3.3 V supply.C8 SCK1 Serial port control Serial Clock (Serial Port 1). Serial Port 1 is used for OSD control.C9 GND GND Ground.C10 INT0 Miscellaneous digital Interrupt Pin 0. When status bits change, this pin is triggered.C11 PDN Miscellaneous digital Power-Down. This pin controls the power state of the ADV8003.C12 GND GND Ground.C13 GND GND Ground.C14 NC No connect Do not connect to this pin.C15 NC No connect Do not connect to this pin.C16 RX_HPD Rx input Hot Plug Assert Signal Output for the Rx Input.C17 AVDD1 Power HDMI Rx Inputs Analog Supply (3.3 V).C18 GND GND Ground.C19 GND GND Ground.C20 AVDD1 Power HDMI Rx Inputs Analog Supply (3.3 V).C21 AVDD1 Power HDMI Rx Inputs Analog Supply (3.3 V).C22 DAC5 Analog video output Encoder DAC5 Output.C23 DAC6 Analog video output Encoder DAC6 Output.D1 OSD_IN[16]/EXT_DIN[0] OSD video input/miscellaneous digitalExternal OSD Video Pixel Input Port (OSD_IN[16])/Additional TTL Input forExternal CCIR 656 Video Data (EXT_DIN[0]).D2 OSD_IN[17]/EXT_DIN[1] OSD video input/miscellaneous digitalExternal OSD Video Pixel Input Port (OSD_IN[17])/Additional TTL Input forExternal CCIR 656 Video Data (EXT_DIN[1]).D3 OSD_IN[18]/EXT_DIN[2] OSD video input/miscellaneous digitalExternal OSD Video Pixel Input Port (OSD_IN[18])/Additional TTL Input forExternal CCIR 656 Video Data (EXT_DIN[2]).D4 GND GND Ground.D5 DVDD_IO Power Digital Interface Supply (3.3 V).D6 MCLK Audio input MCLK for S/PDIF Input Audio.D7 SDA I 2C control I 2C Data Input. This pin is open drain; use a 4.7 kΩ resistor to connect this pinto a 3.3 V supply.D8 CS1 Serial port control Chip Select (Serial Port 1). Serial Port 1 is used for OSD control.D9 GND GND Ground.D10 INT1 Miscellaneous digital Interrupt Pin for HDMI Transmitter Outputs. When status bits change, aninterrupt is generated on this pin.D11 INT2 Miscellaneous digital Interrupt Pin for HDMI Receiver Input Lines. When status bits change, aninterrupt is generated on this pin.D12 DVDD_IO Power Digital Interface Supply (3.3 V).D13 TEST1 Miscellaneous digital Test Pin.D14 NC No connect Do not connect to this pin.D15 NC No connect Do not connect to this pin.D16 RX_5V Rx input 5 V Detect Pin for the Rx Input.D17 NC No connect Do not connect to this pin.D18 NC No connect Do not connect to this pin.D19 RTERM HDMI Rx input This pin sets internal termination resistance. Use a 500 Ω resistor betweenthis pin and GND. Place the RTERM resistor as close as possible to the ADV8003.D20 AVDD2 Power Encoder Analog Power Supply (3.3 V).D21 AVDD2 Power Encoder Analog Power Supply (3.3 V).